The vape demonstration merely showed where a 125nm covid virus could escape from.
I understand your argument when it comes to vapor passing through the mask itself, but look at all the vapor escape routes for a mask on the human face. Those gaps are bigger than 125nm.
Ah yes, I remember the spontaneous displays of delight - all those people who just happened be wearing yellow, to have large quantities of flowers at hand, large amounts of cans of soda and some remarkably professional "hand written" ( in English) placards.
So convincing!
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